Ossia staff verse order

[Phil Holmes]

With the following code:

<<
 \new Staff = "Main" {
   \new Voice = "MainVoice" {
     \repeat unfold 4 { c'4 }
     <<
       \repeat unfold 4 { c'4 }
       \new Staff = "OssiaStaff" \with {
         \remove "Time_signature_engraver"
         alignAboveContext = #"Main"
         \override StaffSymbol #'staff-space = #(magstep -3) % Sets the 
staff line spacing
         fontSize = #-2
       }
       \new Voice = "OssiaVoice" {
         \repeat unfold 4 { c'4 }
       }
       \new Lyrics \with { alignBelowContext = "OssiaStaff" } \lyricsto 
"OssiaVoice" { \teeny  First verse la la }
       \new Lyrics \with { alignBelowContext = "OssiaStaff" } \lyricsto 
"OssiaVoice" { \teeny  Second verse la la }
     >>
     \repeat unfold 4 { c'4 }
   }
 }
> >

The lyrics come out in a vertical order with the second verse higher (closer 
to the stave) than the first.  Strikes me as wrong.  Should I raise a bug 
for this, or am I doing something stupid?

--
Phil Holmes
Bug Squad